Nanostructured TiO2 layers on Ti for bone bonding

Wu, Jin‐Ming

doi:10.1016/b978-0-08-102999-2.00003-x

Cited by 2 publications

(4 citation statements)

References 176 publications

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“…Because of the debilitating effect of the disruption of the thin native oxide film on Ti-based implants, efforts were done to produce thicker and more stable layers of Ti-based oxides to improve the materials’ surface bioactivity [ 53 , 54 , 55 ], favoring bone cell adhesion and proliferation and matrix mineralization promotion [ 31 , 56 ]. Direct oxidation of Ti implants by treatment with H 2 O 2 or NaOH to induce the formation of a TiO 2 layer can be performed to enhance the bioactive fixation of Ti-based implants [ 252 ]. Other efforts also include growing Ti-based nanoporous oxides [ 33 ] and nanotubular oxide layers [ 53 ] on glass-forming alloys, such as Ti-Y-Al-Co for the former and Ti-Zr-Si(-Nb) for the latter ( Figure 9 ).…”

Section: Ti and Ti-based Oxides For Biomedical Implantsmentioning

confidence: 99%

A Review on Nano Ti-Based Oxides for Dark and Photocatalysis: From Photoinduced Processes to Bioimplant Applications

Querebillo

2023

Nanomaterials

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Catalysis on TiO2 nanomaterials in the presence of H2O and oxygen plays a crucial role in the advancement of many different fields, such as clean energy technologies, catalysis, disinfection, and bioimplants. Photocatalysis on TiO2 nanomaterials is well-established and has advanced in the last decades in terms of the understanding of its underlying principles and improvement of its efficiency. Meanwhile, the increasing complexity of modern scientific challenges in disinfection and bioimplants requires a profound mechanistic understanding of both residual and dark catalysis. Here, an overview of the progress made in TiO2 catalysis is given both in the presence and absence of light. It begins with the mechanisms involving reactive oxygen species (ROS) in TiO2 photocatalysis. This is followed by improvements in their photocatalytic efficiency due to their nanomorphology and states by enhancing charge separation and increasing light harvesting. A subsection on black TiO2 nanomaterials and their interesting properties and physics is also included. Progress in residual catalysis and dark catalysis on TiO2 are then presented. Safety, microbicidal effect, and studies on Ti-oxides for bioimplants are also presented. Finally, conclusions and future perspectives in light of disinfection and bioimplant application are given.

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Section: Ti and Ti-based Oxides For Biomedical Implantsmentioning

confidence: 99%

A Review on Nano Ti-Based Oxides for Dark and Photocatalysis: From Photoinduced Processes to Bioimplant Applications

Querebillo

2023

Nanomaterials

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“…Since the difference between samples TiCl 4 /H 2 O and TTIP/H 2 O was minimal, the influence of crystallinity and surface topography on differentiation was insignificant. It is more likely that the ALD titanium oxide surface is better suited for the adsorption of signaling biomolecules that promote rapid differentiation in the osteogenic direction [2,6]. Despite all the above, a comparison of the cytological response of the samples with and without coatings showed that the positive effect is not very great.…”

Section: Discussionmentioning

confidence: 99%

“…Titanium oxide is commonly used in medicine in the form of thin films and coatings [1,2]. The TiO 2 coatings serve as an active layer for biosensors [3], protective layers that prevent the biocorrosion of medical implants [4][5][6] or regulate the dissolution rate of biodegradable materials [7,8]. In addition, TiO 2 has a bactericidal effect [9] and can be used to store and release drugs [10].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, TiO 2 has a bactericidal effect [9] and can be used to store and release drugs [10]. Moreover, its crystalline modifications can significantly accelerate the osseointegration of the biomaterial [6,11]. In this regard, the development and optimization of methods and techniques for obtaining titanium oxide coatings with high conformality, thickness uniformity, and purity are of particular interest to researchers.…”

Section: Introductionmentioning

confidence: 99%

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MG-63 and FetMSC Cell Response on Atomic Layer Deposited TiO2 Nanolayers Prepared Using Titanium Tetrachloride and Tetraisopropoxide

et al. 2022

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Titanium oxide nanocoatings were synthesized on the surface of monocrystalline silicon and ultra-fine-grained titanium by atomic layer deposition (ALD) using titanium tetrachloride (TiCl4) and titanium tetraisopropoxide (TTIP). The morphology of the samples was studied by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The structure and composition were studied by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), contact angle measurements, and energy-dispersive spectroscopy (EDS). The cytological response of osteosarcoma MG-63 and human fetal mesenchymal stem cells (FetMSCs) were studied by analyzing their morphology, viability, and alkaline phosphatase activity with and without the use of medium-induced differentiation in the osteogenic direction. A significant influence of the precursor type and ALD temperature on the crystal structure, morphology, composition, and surface free energy of TiO2 nanocoatings was found. The biocompatibility of amorphous non-stoichiometric and partially crystalline stoichiometric TiO2 coatings was compared. Both types of cells showed faster adhesion and improved spreading on the surface for the samples from TTIP compared to those from TiCl4 at the early stages of cultivation (2 h) due to the difference in composition and higher surface free energy. No cytotoxic effect was found on both types of coatings, nor was there a noticeable difference in cell differentiation. All ALD coatings provided excellent biocompatibility and osteoconductive properties.

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Nanostructured TiO2 layers on Ti for bone bonding

Cited by 2 publications

References 176 publications

A Review on Nano Ti-Based Oxides for Dark and Photocatalysis: From Photoinduced Processes to Bioimplant Applications

A Review on Nano Ti-Based Oxides for Dark and Photocatalysis: From Photoinduced Processes to Bioimplant Applications

MG-63 and FetMSC Cell Response on Atomic Layer Deposited TiO2 Nanolayers Prepared Using Titanium Tetrachloride and Tetraisopropoxide

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